Part of the catch with the Reyes/Duncan thing - Duncan has proven he knows how to get the most out of almost any kind of pitcher. Reyes is still young and while he's done fine at the AAA level, who knows if he's got the patience for starting at the major level? The one thing Duncan is right about, Reyes relied too much on one pitch as his out pitch when he was with the big club and it cost them games. Don't know if he's still doing that in Memphis, but it is something to consider.
Oh yeah... and Reyes is likely only with the organization still because they haven't found a good trade partner. If Reyes continues doing well starting in Memphis, he'll get traded this summer.
I disagree with that completely. Duncan really has one philosophy and it's not exactly earth-shattering... keep the ball down. That's great and all but some pitchers achieve their success in other ways, and in Reyes' career he has been at his best when he's free to use a high fastball... something that Duncan doesn't want him to use. Even this year when he was more successful in relief it was talked about a lot that one of the reasons why is because he was throwing his high fastball, as he has his entire pre-Duncan career.